All the following statements about cellulose are correct, except

1.	Cellulose is homopolymer
2.	it is the most abundant organic molecule in the biosphere
3.	It is branched polymer of $\mathrm{\beta }$ -glucose ​​​​​​
4.	It has $\mathrm{\beta }$ 1-4 glycosidic bonds

The compound shown below:

The zwitterion is shown by:

"Ramachandran plot" is used to confirm the structure of:

1. RNA

2. Proteins

3. Triacylglycerides

4. DNA

Prosthetic groups differ from co-enzymes, in which:

Which of the following organic compounds is the main constituent of Lecithin?

The living state of an organism is a :
1. non-equlibrium steady state
2. non-equilibrium variable state
3. steady state in perfect equlibrium
4. variable state in perfect quilibrium

Which element is present negligible in human body?

1. O

2. C

3. H

4. Si

The simplest amino acid

1. Glycine

2. Alanine

3. Serine

4. Tyrosine

Adenine is